Getting error when starting cgconfig in RHEL

Issue

• We are experiencing the following problem:

  # service cgconfig start
  Starting cgconfig service: /sbin/cgconfigparser; error loading /etc/cgconfig.conf: Failed to remove a non-empty group
  Failed to parse /etc/cgconfig.conf or /etc/cgconfig.d      [FAILED]
  

  Our /etc/cgconfig.conf contains:

  mount {
          cpuset  = /cgroup/cpuset;
          cpu     = /cgroup/cpu;
          cpuacct = /cgroup/cpuacct;
          memory  = /cgroup/memory;
          devices = /cgroup/devices;
          freezer = /cgroup/freezer;
          net_cls = /cgroup/net_cls;
          blkio   = /cgroup/blkio;
  }
  group nonpriv {
          cpu {
                  cpu.shares="250";
          }
          cpuacct {
                  cpuacct.usage="0";
          }
          memory {
                  memory.limit_in_bytes= 15G;
                  memory.memsw.limit_in_bytes = 1G;
          }
  }